Improvement in buckles



UNITED lSTATES PATENT EEICE.

EDIVARD A. PIERCE, OF BRIGI-I'ION, MASSACHUSETTS.

IMPROVEMENT IN BUCKLES.

Specification forming part of Letters Patent No. 35,03S7 dated April 22,1862.

To all whom it may concern.'

Be it known that I, EDWARD A. PIERCE, of Brighton, in the county ofMiddlesex and State ot' Massachusetts, have invented a new and ImprovedBuckle, of which the following is a full, clear, and exact description,reference being had to the accompanying drawings, making part of thisspecification, in which- Figure l is a view of the buckle with the lwrench for operating it applied thereto; Fig. 2, a transverse section.Fig. shows the application of my buckle to a surgeons tonrniduet t'orarresting the bleeding ol a wound ed limb.

The object ol my present invention is to produce a buckle Vlor securingand tightening straps, by which the strap may be drawn tighter and withless expenditure of physical torce than with a buckle of the ordinarycon struction having a tongue which penetrates the strap; and myinvention consists in a buckle having a roller to which the strap isatt-ached, so that by turning the roller by means of a key or wrench thestrap may be tightened, a ratchet and pawl holding the roller.

That others skilled in the art may under stand and use my invention, Iwill proceed to describe the manner in which I have carried it out.

In the said drawings, A is the body of the buckle, from. each end ofwhich rises a standard, a., which serve as bearings for a roll, B, whichhas a slot, c, cutlongitudinally through it to receive the strap l),Fig. :2, and has formed on its end which extends beyond one ot thestandards a square shoulder to receive a n key or wrench, Fig. l, and aratchet, d. A

pawl, e, is pivot-ed to the side of the standard ot the buckle undengages with the ratchet (l.

A spring maybe employed to hold the pawl in contact with t-he ratchet.

The body A of the buckle is open in the center at f to give more room tothe strap to be wound upon the roll B.

Vhen used simply as a buckle to secure 1 and tighten up a strap, (askate-strap, for exanple,) both ends ol' the strap are passed throughthe slot c, and the roll B is turned by means of th'e wrench C until thestrap is sufficiently tight. The teeth ol thc ratchet cl being small,the strap does not give back and lose part ol" what has been gained bydrawing it up, as it does when inserting the tongue of an ordinarybuckle, while more power can be applied through the wrench C and thestrap can be drawn up tighter than it can when the end of the strap isgrasped bythe hand.

In Fig. 3 is shown the application of iny buckle to a surgeonstonrniquet, in which the y strap b is passed through the slot in theroll B, then around the limb to which it is to be i applied, and the twoends of the strap are buckled together or tied at h, when by turning theroll B, as before stated, a sutcient pressure may be applied to thelimb. A pad,

for this purpose.

That l claim as my invention, and desire to secure by Letters Patent asa new article l of manufacture, is

A buckle constructed substantially as described, with its iframe A,slotted roll B, and ratchet an d pawl d e, lor the purpose described.

,il A. PIERCE.

Witnesses: y THos. R. Roken, l 'EDMUND Masson.

g, is generally attached to the strap when used

